/**
 * State-based routing for AngularJS
 * @version v0.2.0-dev-2013-09-02
 * @link http://angular-ui.github.com/
 * @license MIT License, http://www.opensource.org/licenses/MIT
 */
(function (window, angular, undefined) {
    /*jshint globalstrict:true*/
    /*global angular:false*/
    'use strict';

    var isDefined = angular.isDefined,
        isFunction = angular.isFunction,
        isString = angular.isString,
        isObject = angular.isObject,
        isArray = angular.isArray,
        forEach = angular.forEach,
        extend = angular.extend,
        copy = angular.copy;

    function inherit(parent, extra) {
        return extend(new (extend(function () { }, { prototype: parent }))(), extra);
    }

    function merge(dst) {
        forEach(arguments, function (obj) {
            if (obj !== dst) {
                forEach(obj, function (value, key) {
                    if (!dst.hasOwnProperty(key)) dst[key] = value;
                });
            }
        });
        return dst;
    }

    /**
     * Finds the common ancestor path between two states.
     *
     * @param {Object} first The first state.
     * @param {Object} second The second state.
     * @return {Array} Returns an array of state names in descending order, not including the root.
     */
    function ancestors(first, second) {
        var path = [];

        for (var n in first.path) {
            if (first.path[n] === "") continue;
            if (!second.path[n]) break;
            path.push(first.path[n]);
        }
        return path;
    }

    /**
     * Merges a set of parameters with all parameters inherited between the common parents of the
     * current state and a given destination state.
     *
     * @param {Object} currentParams The value of the current state parameters ($stateParams).
     * @param {Object} newParams The set of parameters which will be composited with inherited params.
     * @param {Object} $current Internal definition of object representing the current state.
     * @param {Object} $to Internal definition of object representing state to transition to.
     */
    function inheritParams(currentParams, newParams, $current, $to) {
        var parents = ancestors($current, $to), parentParams, inherited = {}, inheritList = [];

        for (var i in parents) {
            if (!parents[i].params || !parents[i].params.length) continue;
            parentParams = parents[i].params;

            for (var j in parentParams) {
                if (inheritList.indexOf(parentParams[j]) >= 0) continue;
                inheritList.push(parentParams[j]);
                inherited[parentParams[j]] = currentParams[parentParams[j]];
            }
        }
        return extend({}, inherited, newParams);
    }

    angular.module('ui.router.util', ['ng']);
    angular.module('ui.router.router', ['ui.router.util']);
    angular.module('ui.router.state', ['ui.router.router', 'ui.router.util']);
    angular.module('ui.router', ['ui.router.state']);
    angular.module('ui.router.compat', ['ui.router']);


    /**
     * Service (`ui-util`). Manages resolution of (acyclic) graphs of promises.
     * @module $resolve
     * @requires $q
     * @requires $injector
     */
    $Resolve.$inject = ['$q', '$injector'];
    function $Resolve($q, $injector) {

        var VISIT_IN_PROGRESS = 1,
            VISIT_DONE = 2,
            NOTHING = {},
            NO_DEPENDENCIES = [],
            NO_LOCALS = NOTHING,
            NO_PARENT = extend($q.when(NOTHING), { $$promises: NOTHING, $$values: NOTHING });


        /**
         * Studies a set of invocables that are likely to be used multiple times.
         *      $resolve.study(invocables)(locals, parent, self)
         * is equivalent to
         *      $resolve.resolve(invocables, locals, parent, self)
         * but the former is more efficient (in fact `resolve` just calls `study` internally).
         * See {@link module:$resolve/resolve} for details.
         * @function
         * @param {Object} invocables
         * @return {Function}
         */
        this.study = function (invocables) {
            if (!isObject(invocables)) throw new Error("'invocables' must be an object");

            // Perform a topological sort of invocables to build an ordered plan
            var plan = [], cycle = [], visited = {};
            function visit(value, key) {
                if (visited[key] === VISIT_DONE) return;

                cycle.push(key);
                if (visited[key] === VISIT_IN_PROGRESS) {
                    cycle.splice(0, cycle.indexOf(key));
                    throw new Error("Cyclic dependency: " + cycle.join(" -> "));
                }
                visited[key] = VISIT_IN_PROGRESS;

                if (isString(value)) {
                    plan.push(key, [function () { return $injector.get(key); }], NO_DEPENDENCIES);
                } else {
                    var params = $injector.annotate(value);
                    forEach(params, function (param) {
                        if (param !== key && invocables.hasOwnProperty(param)) visit(invocables[param], param);
                    });
                    plan.push(key, value, params);
                }

                cycle.pop();
                visited[key] = VISIT_DONE;
            }
            forEach(invocables, visit);
            invocables = cycle = visited = null; // plan is all that's required

            function isResolve(value) {
                return isObject(value) && value.then && value.$$promises;
            }

            return function (locals, parent, self) {
                if (isResolve(locals) && self === undefined) {
                    self = parent; parent = locals; locals = null;
                }
                if (!locals) locals = NO_LOCALS;
                else if (!isObject(locals)) {
                    throw new Error("'locals' must be an object");
                }
                if (!parent) parent = NO_PARENT;
                else if (!isResolve(parent)) {
                    throw new Error("'parent' must be a promise returned by $resolve.resolve()");
                }

                // To complete the overall resolution, we have to wait for the parent
                // promise and for the promise for each invokable in our plan.
                var resolution = $q.defer(),
                    result = resolution.promise,
                    promises = result.$$promises = {},
                    values = extend({}, locals),
                    wait = 1 + plan.length / 3,
                    merged = false;

                function done() {
                    // Merge parent values we haven't got yet and publish our own $$values
                    if (!--wait) {
                        if (!merged) merge(values, parent.$$values);
                        result.$$values = values;
                        result.$$promises = true; // keep for isResolve()
                        resolution.resolve(values);
                    }
                }

                function fail(reason) {
                    result.$$failure = reason;
                    resolution.reject(reason);
                }

                // Short-circuit if parent has already failed
                if (isDefined(parent.$$failure)) {
                    fail(parent.$$failure);
                    return result;
                }

                // Merge parent values if the parent has already resolved, or merge
                // parent promises and wait if the parent resolve is still in progress.
                if (parent.$$values) {
                    merged = merge(values, parent.$$values);
                    done();
                } else {
                    extend(promises, parent.$$promises);
                    parent.then(done, fail);
                }

                // Process each invocable in the plan, but ignore any where a local of the same name exists.
                for (var i = 0, ii = plan.length; i < ii; i += 3) {
                    if (locals.hasOwnProperty(plan[i])) done();
                    else invoke(plan[i], plan[i + 1], plan[i + 2]);
                }

                function invoke(key, invocable, params) {
                    // Create a deferred for this invocation. Failures will propagate to the resolution as well.
                    var invocation = $q.defer(), waitParams = 0;
                    function onfailure(reason) {
                        invocation.reject(reason);
                        fail(reason);
                    }
                    // Wait for any parameter that we have a promise for (either from parent or from this
                    // resolve; in that case study() will have made sure it's ordered before us in the plan).
                    params.forEach(function (dep) {
                        if (promises.hasOwnProperty(dep) && !locals.hasOwnProperty(dep)) {
                            waitParams++;
                            promises[dep].then(function (result) {
                                values[dep] = result;
                                if (!(--waitParams)) proceed();
                            }, onfailure);
                        }
                    });
                    if (!waitParams) proceed();
                    function proceed() {
                        if (isDefined(result.$$failure)) return;
                        try {
                            invocation.resolve($injector.invoke(invocable, self, values));
                            invocation.promise.then(function (result) {
                                values[key] = result;
                                done();
                            }, onfailure);
                        } catch (e) {
                            onfailure(e);
                        }
                    }
                    // Publish promise synchronously; invocations further down in the plan may depend on it.
                    promises[key] = invocation.promise;
                }

                return result;
            };
        };

        /**
         * Resolves a set of invocables. An invocable is a function to be invoked via `$injector.invoke()`,
         * and can have an arbitrary number of dependencies. An invocable can either return a value directly,
         * or a `$q` promise. If a promise is returned it will be resolved and the resulting value will be
         * used instead. Dependencies of invocables are resolved (in this order of precedence)
         *
         * - from the specified `locals`
         * - from another invocable that is part of this `$resolve` call
         * - from an invocable that is inherited from a `parent` call to `$resolve` (or recursively
         *   from any ancestor `$resolve` of that parent).
         *
         * The return value of `$resolve` is a promise for an object that contains (in this order of precedence)
         *
         * - any `locals` (if specified)
         * - the resolved return values of all injectables
         * - any values inherited from a `parent` call to `$resolve` (if specified)
         *
         * The promise will resolve after the `parent` promise (if any) and all promises returned by injectables
         * have been resolved. If any invocable (or `$injector.invoke`) throws an exception, or if a promise
         * returned by an invocable is rejected, the `$resolve` promise is immediately rejected with the same error.
         * A rejection of a `parent` promise (if specified) will likewise be propagated immediately. Once the
         * `$resolve` promise has been rejected, no further invocables will be called.
         * 
         * Cyclic dependencies between invocables are not permitted and will caues `$resolve` to throw an
         * error. As a special case, an injectable can depend on a parameter with the same name as the injectable,
         * which will be fulfilled from the `parent` injectable of the same name. This allows inherited values
         * to be decorated. Note that in this case any other injectable in the same `$resolve` with the same
         * dependency would see the decorated value, not the inherited value.
         *
         * Note that missing dependencies -- unlike cyclic dependencies -- will cause an (asynchronous) rejection
         * of the `$resolve` promise rather than a (synchronous) exception.
         *
         * Invocables are invoked eagerly as soon as all dependencies are available. This is true even for
         * dependencies inherited from a `parent` call to `$resolve`.
         *
         * As a special case, an invocable can be a string, in which case it is taken to be a service name
         * to be passed to `$injector.get()`. This is supported primarily for backwards-compatibility with the
         * `resolve` property of `$routeProvider` routes.
         *
         * @function
         * @param {Object.<string, Function|string>} invocables  functions to invoke or `$injector` services to fetch.
         * @param {Object.<string, *>} [locals]  values to make available to the injectables
         * @param {Promise.<Object>} [parent]  a promise returned by another call to `$resolve`.
         * @param {Object} [self]  the `this` for the invoked methods
         * @return {Promise.<Object>}  Promise for an object that contains the resolved return value
         *    of all invocables, as well as any inherited and local values.
         */
        this.resolve = function (invocables, locals, parent, self) {
            return this.study(invocables)(locals, parent, self);
        };
    }

    angular.module('ui.router.util').service('$resolve', $Resolve);


    /**
     * Service. Manages loading of templates.
     * @constructor
     * @name $templateFactory
     * @requires $http
     * @requires $templateCache
     * @requires $injector
     */
    $TemplateFactory.$inject = ['$http', '$templateCache', '$injector'];
    function $TemplateFactory($http, $templateCache, $injector) {

        /**
         * Creates a template from a configuration object. 
         * @function
         * @name $templateFactory#fromConfig
         * @methodOf $templateFactory
         * @param {Object} config  Configuration object for which to load a template. The following
         *    properties are search in the specified order, and the first one that is defined is
         *    used to create the template:
         * @param {string|Function} config.template  html string template or function to load via
         *    {@link $templateFactory#fromString fromString}.
         * @param {string|Function} config.templateUrl  url to load or a function returning the url
         *    to load via {@link $templateFactory#fromUrl fromUrl}.
         * @param {Function} config.templateProvider  function to invoke via
         *    {@link $templateFactory#fromProvider fromProvider}.
         * @param {Object} params  Parameters to pass to the template function.
         * @param {Object} [locals] Locals to pass to `invoke` if the template is loaded via a
         *      `templateProvider`. Defaults to `{ params: params }`.
         * @return {string|Promise.<string>}  The template html as a string, or a promise for that string,
         *      or `null` if no template is configured.
         */
        this.fromConfig = function (config, params, locals) {
            return (
              isDefined(config.template) ? this.fromString(config.template, params) :
              isDefined(config.templateUrl) ? this.fromUrl(config.templateUrl, params) :
              isDefined(config.templateProvider) ? this.fromProvider(config.templateProvider, params, locals) :
              null
            );
        };

        /**
         * Creates a template from a string or a function returning a string.
         * @function
         * @name $templateFactory#fromString
         * @methodOf $templateFactory
         * @param {string|Function} template  html template as a string or function that returns an html
         *      template as a string.
         * @param {Object} params  Parameters to pass to the template function.
         * @return {string|Promise.<string>}  The template html as a string, or a promise for that string.
         */
        this.fromString = function (template, params) {
            return isFunction(template) ? template(params) : template;
        };

        /**
         * Loads a template from the a URL via `$http` and `$templateCache`.
         * @function
         * @name $templateFactory#fromUrl
         * @methodOf $templateFactory
         * @param {string|Function} url  url of the template to load, or a function that returns a url.
         * @param {Object} params  Parameters to pass to the url function.
         * @return {string|Promise.<string>}  The template html as a string, or a promise for that string.
         */
        this.fromUrl = function (url, params) {
            if (isFunction(url)) url = url(params);
            if (url == null) return null;
            else return $http
                .get(url, { cache: $templateCache })
                .then(function (response) { return response.data; });
        };

        /**
         * Creates a template by invoking an injectable provider function.
         * @function
         * @name $templateFactory#fromUrl
         * @methodOf $templateFactory
         * @param {Function} provider Function to invoke via `$injector.invoke`
         * @param {Object} params Parameters for the template.
         * @param {Object} [locals] Locals to pass to `invoke`. Defaults to `{ params: params }`.
         * @return {string|Promise.<string>} The template html as a string, or a promise for that string.
         */
        this.fromProvider = function (provider, params, locals) {
            return $injector.invoke(provider, null, locals || { params: params });
        };
    }

    angular.module('ui.router.util').service('$templateFactory', $TemplateFactory);

    /**
     * Matches URLs against patterns and extracts named parameters from the path or the search
     * part of the URL. A URL pattern consists of a path pattern, optionally followed by '?' and a list
     * of search parameters. Multiple search parameter names are separated by '&'. Search parameters
     * do not influence whether or not a URL is matched, but their values are passed through into
     * the matched parameters returned by {@link UrlMatcher#exec exec}.
     * 
     * Path parameter placeholders can be specified using simple colon/catch-all syntax or curly brace
     * syntax, which optionally allows a regular expression for the parameter to be specified:
     *
     * * ':' name - colon placeholder
     * * '*' name - catch-all placeholder
     * * '{' name '}' - curly placeholder
     * * '{' name ':' regexp '}' - curly placeholder with regexp. Should the regexp itself contain
     *   curly braces, they must be in matched pairs or escaped with a backslash.
     *
     * Parameter names may contain only word characters (latin letters, digits, and underscore) and
     * must be unique within the pattern (across both path and search parameters). For colon 
     * placeholders or curly placeholders without an explicit regexp, a path parameter matches any
     * number of characters other than '/'. For catch-all placeholders the path parameter matches
     * any number of characters.
     * 
     * ### Examples
     * 
     * * '/hello/' - Matches only if the path is exactly '/hello/'. There is no special treatment for
     *   trailing slashes, and patterns have to match the entire path, not just a prefix.
     * * '/user/:id' - Matches '/user/bob' or '/user/1234!!!' or even '/user/' but not '/user' or
     *   '/user/bob/details'. The second path segment will be captured as the parameter 'id'.
     * * '/user/{id}' - Same as the previous example, but using curly brace syntax.
     * * '/user/{id:[^/]*}' - Same as the previous example.
     * * '/user/{id:[0-9a-fA-F]{1,8}}' - Similar to the previous example, but only matches if the id
     *   parameter consists of 1 to 8 hex digits.
     * * '/files/{path:.*}' - Matches any URL starting with '/files/' and captures the rest of the
     *   path into the parameter 'path'.
     * * '/files/*path' - ditto.
     *
     * @constructor
     * @param {string} pattern  the pattern to compile into a matcher.
     *
     * @property {string} prefix  A static prefix of this pattern. The matcher guarantees that any
     *   URL matching this matcher (i.e. any string for which {@link UrlMatcher#exec exec()} returns
     *   non-null) will start with this prefix.
     */
    function UrlMatcher(pattern) {

        // Find all placeholders and create a compiled pattern, using either classic or curly syntax:
        //   '*' name
        //   ':' name
        //   '{' name '}'
        //   '{' name ':' regexp '}'
        // The regular expression is somewhat complicated due to the need to allow curly braces
        // inside the regular expression. The placeholder regexp breaks down as follows:
        //    ([:*])(\w+)               classic placeholder ($1 / $2)
        //    \{(\w+)(?:\:( ... ))?\}   curly brace placeholder ($3) with optional regexp ... ($4)
        //    (?: ... | ... | ... )+    the regexp consists of any number of atoms, an atom being either
        //    [^{}\\]+                  - anything other than curly braces or backslash
        //    \\.                       - a backslash escape
        //    \{(?:[^{}\\]+|\\.)*\}     - a matched set of curly braces containing other atoms
        var placeholder = /([:*])(\w+)|\{(\w+)(?:\:((?:[^{}\\]+|\\.|\{(?:[^{}\\]+|\\.)*\})+))?\}/g,
            names = {}, compiled = '^', last = 0, m,
            segments = this.segments = [],
            params = this.params = [];

        function addParameter(id) {
            if (!/^\w+(-+\w+)*$/.test(id)) throw new Error("Invalid parameter name '" + id + "' in pattern '" + pattern + "'");
            if (names[id]) throw new Error("Duplicate parameter name '" + id + "' in pattern '" + pattern + "'");
            names[id] = true;
            params.push(id);
        }

        function quoteRegExp(string) {
            return string.replace(/[\\\[\]\^$*+?.()|{}]/g, "\\$&");
        }

        this.source = pattern;

        // Split into static segments separated by path parameter placeholders.
        // The number of segments is always 1 more than the number of parameters.
        var id, regexp, segment;
        while ((m = placeholder.exec(pattern))) {
            id = m[2] || m[3]; // IE[78] returns '' for unmatched groups instead of null
            regexp = m[4] || (m[1] == '*' ? '.*' : '[^/]*');
            segment = pattern.substring(last, m.index);
            if (segment.indexOf('?') >= 0) break; // we're into the search part
            compiled += quoteRegExp(segment) + '(' + regexp + ')';
            addParameter(id);
            segments.push(segment);
            last = placeholder.lastIndex;
        }
        segment = pattern.substring(last);

        // Find any search parameter names and remove them from the last segment
        var i = segment.indexOf('?');
        if (i >= 0) {
            var search = this.sourceSearch = segment.substring(i);
            segment = segment.substring(0, i);
            this.sourcePath = pattern.substring(0, last + i);

            // Allow parameters to be separated by '?' as well as '&' to make concat() easier
            forEach(search.substring(1).split(/[&?]/), addParameter);
        } else {
            this.sourcePath = pattern;
            this.sourceSearch = '';
        }

        compiled += quoteRegExp(segment) + '$';
        segments.push(segment);
        this.regexp = new RegExp(compiled, 'i');
        this.prefix = segments[0];
    }

    /**
     * Returns a new matcher for a pattern constructed by appending the path part and adding the
     * search parameters of the specified pattern to this pattern. The current pattern is not
     * modified. This can be understood as creating a pattern for URLs that are relative to (or
     * suffixes of) the current pattern.
     *
     * ### Example
     * The following two matchers are equivalent:
     * ```
     * new UrlMatcher('/user/{id}?q').concat('/details?date');
     * new UrlMatcher('/user/{id}/details?q&date');
     * ```
     *
     * @param {string} pattern  The pattern to append.
     * @return {UrlMatcher}  A matcher for the concatenated pattern.
     */
    UrlMatcher.prototype.concat = function (pattern) {
        // Because order of search parameters is irrelevant, we can add our own search
        // parameters to the end of the new pattern. Parse the new pattern by itself
        // and then join the bits together, but it's much easier to do this on a string level.
        return new UrlMatcher(this.sourcePath + pattern + this.sourceSearch);
    };

    UrlMatcher.prototype.toString = function () {
        return this.source;
    };

    /**
     * Tests the specified path against this matcher, and returns an object containing the captured
     * parameter values, or null if the path does not match. The returned object contains the values
     * of any search parameters that are mentioned in the pattern, but their value may be null if
     * they are not present in `searchParams`. This means that search parameters are always treated
     * as optional.
     *
     * ### Example
     * ```
     * new UrlMatcher('/user/{id}?q&r').exec('/user/bob', { x:'1', q:'hello' });
     * // returns { id:'bob', q:'hello', r:null }
     * ```
     *
     * @param {string} path  The URL path to match, e.g. `$location.path()`.
     * @param {Object} searchParams  URL search parameters, e.g. `$location.search()`.
     * @return {Object}  The captured parameter values.
     */
    UrlMatcher.prototype.exec = function (path, searchParams) {
        var m = this.regexp.exec(path);
        if (!m) return null;

        var params = this.params, nTotal = params.length,
          nPath = this.segments.length - 1,
          values = {}, i;

        if (nPath !== m.length - 1) throw new Error("Unbalanced capture group in route '" + this.source + "'");

        for (i = 0; i < nPath; i++) values[params[i]] = m[i + 1];
        for (/**/; i < nTotal; i++) values[params[i]] = searchParams[params[i]];

        return values;
    };

    /**
     * Returns the names of all path and search parameters of this pattern in an unspecified order.
     * @return {Array.<string>}  An array of parameter names. Must be treated as read-only. If the
     *    pattern has no parameters, an empty array is returned.
     */
    UrlMatcher.prototype.parameters = function () {
        return this.params;
    };

    /**
     * Creates a URL that matches this pattern by substituting the specified values
     * for the path and search parameters. Null values for path parameters are
     * treated as empty strings.
     *
     * ### Example
     * ```
     * new UrlMatcher('/user/{id}?q').format({ id:'bob', q:'yes' });
     * // returns '/user/bob?q=yes'
     * ```
     *
     * @param {Object} values  the values to substitute for the parameters in this pattern.
     * @return {string}  the formatted URL (path and optionally search part).
     */
    UrlMatcher.prototype.format = function (values) {
        var segments = this.segments, params = this.params;
        if (!values) return segments.join('');

        var nPath = segments.length - 1, nTotal = params.length,
          result = segments[0], i, search, value;

        for (i = 0; i < nPath; i++) {
            value = values[params[i]];
            // TODO: Maybe we should throw on null here? It's not really good style to use '' and null interchangeabley
            if (value != null) result += encodeURIComponent(value);
            result += segments[i + 1];
        }
        for (/**/; i < nTotal; i++) {
            value = values[params[i]];
            if (value != null) {
                result += (search ? '&' : '?') + params[i] + '=' + encodeURIComponent(value);
                search = true;
            }
        }

        return result;
    };

    /**
     * Service. Factory for {@link UrlMatcher} instances. The factory is also available to providers
     * under the name `$urlMatcherFactoryProvider`.
     * @constructor
     * @name $urlMatcherFactory
     */
    function $UrlMatcherFactory() {
        /**
         * Creates a {@link UrlMatcher} for the specified pattern.
         * @function
         * @name $urlMatcherFactory#compile
         * @methodOf $urlMatcherFactory
         * @param {string} pattern  The URL pattern.
         * @return {UrlMatcher}  The UrlMatcher.
         */
        this.compile = function (pattern) {
            return new UrlMatcher(pattern);
        };

        /**
         * Returns true if the specified object is a UrlMatcher, or false otherwise.
         * @function
         * @name $urlMatcherFactory#isMatcher
         * @methodOf $urlMatcherFactory
         * @param {Object} o
         * @return {boolean}
         */
        this.isMatcher = function (o) {
            return isObject(o) && isFunction(o.exec) && isFunction(o.format) && isFunction(o.concat);
        };

        this.$get = function () {
            return this;
        };
    }

    // Register as a provider so it's available to other providers
    angular.module('ui.router.util').provider('$urlMatcherFactory', $UrlMatcherFactory);


    $UrlRouterProvider.$inject = ['$urlMatcherFactoryProvider'];
    function $UrlRouterProvider($urlMatcherFactory) {
        var rules = [],
            otherwise = null;

        // Returns a string that is a prefix of all strings matching the RegExp
        function regExpPrefix(re) {
            var prefix = /^\^((?:\\[^a-zA-Z0-9]|[^\\\[\]\^$*+?.()|{}]+)*)/.exec(re.source);
            return (prefix != null) ? prefix[1].replace(/\\(.)/g, "$1") : '';
        }

        // Interpolates matched values into a String.replace()-style pattern
        function interpolate(pattern, match) {
            return pattern.replace(/\$(\$|\d{1,2})/, function (m, what) {
                return match[what === '$' ? 0 : Number(what)];
            });
        }

        this.rule =
          function (rule) {
              if (!isFunction(rule)) throw new Error("'rule' must be a function");
              rules.push(rule);
              return this;
          };

        this.otherwise =
          function (rule) {
              if (isString(rule)) {
                  var redirect = rule;
                  rule = function () { return redirect; };
              }
              else if (!isFunction(rule)) throw new Error("'rule' must be a function");
              otherwise = rule;
              return this;
          };


        function handleIfMatch($injector, handler, match) {
            if (!match) return false;
            var result = $injector.invoke(handler, handler, { $match: match });
            return isDefined(result) ? result : true;
        }

        this.when =
          function (what, handler) {
              var redirect, handlerIsString = isString(handler);
              if (isString(what)) what = $urlMatcherFactory.compile(what);

              if (!handlerIsString && !isFunction(handler) && !isArray(handler))
                  throw new Error("invalid 'handler' in when()");

              var strategies = {
                  matcher: function (what, handler) {
                      if (handlerIsString) {
                          redirect = $urlMatcherFactory.compile(handler);
                          handler = ['$match', function ($match) { return redirect.format($match); }];
                      }
                      return extend(function ($injector, $location) {
                          return handleIfMatch($injector, handler, what.exec($location.path(), $location.search()));
                      }, {
                          prefix: isString(what.prefix) ? what.prefix : ''
                      });
                  },
                  regex: function (what, handler) {
                      if (what.global || what.sticky) throw new Error("when() RegExp must not be global or sticky");

                      if (handlerIsString) {
                          redirect = handler;
                          handler = ['$match', function ($match) { return interpolate(redirect, $match); }];
                      }
                      return extend(function ($injector, $location) {
                          return handleIfMatch($injector, handler, what.exec($location.path()));
                      }, {
                          prefix: regExpPrefix(what)
                      });
                  }
              };

              var check = { matcher: $urlMatcherFactory.isMatcher(what), regex: what instanceof RegExp };

              for (var n in check) {
                  if (check[n]) {
                      return this.rule(strategies[n](what, handler));
                  }
              }

              throw new Error("invalid 'what' in when()");
          };

        this.$get =
          ['$location', '$rootScope', '$injector',
          function ($location, $rootScope, $injector) {
              // TODO: Optimize groups of rules with non-empty prefix into some sort of decision tree
              function update() {
                  function check(rule) {
                      var handled = rule($injector, $location);
                      if (handled) {
                          if (isString(handled)) $location.replace().url(handled);
                          return true;
                      }
                      return false;
                  }
                  var n = rules.length, i;
                  for (i = 0; i < n; i++) {
                      if (check(rules[i])) return;
                  }
                  // always check otherwise last to allow dynamic updates to the set of rules
                  if (otherwise) check(otherwise);
              }

              $rootScope.$on('$locationChangeSuccess', update);
              return {};
          }];
    }

    angular.module('ui.router.router').provider('$urlRouter', $UrlRouterProvider);

    $StateProvider.$inject = ['$urlRouterProvider', '$urlMatcherFactoryProvider', '$locationProvider'];
    function $StateProvider($urlRouterProvider, $urlMatcherFactory, $locationProvider) {

        var root, states = {}, $state;

        // Builds state properties from definition passed to registerState()
        var stateBuilder = {

            // Derive parent state from a hierarchical name only if 'parent' is not explicitly defined.
            // state.children = [];
            // if (parent) parent.children.push(state);
            parent: function (state) {
                if (isDefined(state.parent) && state.parent) return findState(state.parent);
                // regex matches any valid composite state name
                // would match "contact.list" but not "contacts"
                var compositeName = /^(.+)\.[^.]+$/.exec(state.name);
                return compositeName ? findState(compositeName[1]) : root;
            },

            // inherit 'data' from parent and override by own values (if any)
            data: function (state) {
                if (state.parent && state.parent.data) {
                    state.data = state.self.data = angular.extend({}, state.parent.data, state.data);
                }
                return state.data;
            },

            // Build a URLMatcher if necessary, either via a relative or absolute URL
            url: function (state) {
                var url = state.url;

                if (isString(url)) {
                    if (url.charAt(0) == '^') {
                        return $urlMatcherFactory.compile(url.substring(1));
                    }
                    return (state.parent.navigable || root).url.concat(url);
                }

                if ($urlMatcherFactory.isMatcher(url) || url == null) {
                    return url;
                }
                throw new Error("Invalid url '" + url + "' in state '" + state + "'");
            },

            // Keep track of the closest ancestor state that has a URL (i.e. is navigable)
            navigable: function (state) {
                return state.url ? state : (state.parent ? state.parent.navigable : null);
            },

            // Derive parameters for this state and ensure they're a super-set of parent's parameters
            params: function (state) {
                if (!state.params) {
                    return state.url ? state.url.parameters() : state.parent.params;
                }
                if (!isArray(state.params)) throw new Error("Invalid params in state '" + state + "'");
                if (state.url) throw new Error("Both params and url specicified in state '" + state + "'");
                return state.params;
            },

            // If there is no explicit multi-view configuration, make one up so we don't have
            // to handle both cases in the view directive later. Note that having an explicit
            // 'views' property will mean the default unnamed view properties are ignored. This
            // is also a good time to resolve view names to absolute names, so everything is a
            // straight lookup at link time.
            views: function (state) {
                var views = {};

                forEach(isDefined(state.views) ? state.views : { '': state }, function (view, name) {
                    if (name.indexOf('@') < 0) name += '@' + state.parent.name;
                    views[name] = view;
                });
                return views;
            },

            ownParams: function (state) {
                if (!state.parent) {
                    return state.params;
                }
                var paramNames = {}; forEach(state.params, function (p) { paramNames[p] = true; });

                forEach(state.parent.params, function (p) {
                    if (!paramNames[p]) {
                        throw new Error("Missing required parameter '" + p + "' in state '" + state.name + "'");
                    }
                    paramNames[p] = false;
                });
                var ownParams = [];

                forEach(paramNames, function (own, p) {
                    if (own) ownParams.push(p);
                });
                return ownParams;
            },

            // Keep a full path from the root down to this state as this is needed for state activation.
            path: function (state) {
                return state.parent ? state.parent.path.concat(state) : []; // exclude root from path
            },

            // Speed up $state.contains() as it's used a lot
            includes: function (state) {
                var includes = state.parent ? extend({}, state.parent.includes) : {};
                includes[state.name] = true;
                return includes;
            }
        };


        function findState(stateOrName, base) {
            var isStr = isString(stateOrName),
                name = isStr ? stateOrName : stateOrName.name,
                path = name.indexOf(".") === 0 || name.indexOf("^") === 0;

            if (path) {
                if (!base) throw new Error("No reference point given for path '" + name + "'");
                var rel = name.split("."), i = 0, pathLength = rel.length, current = base;

                for (; i < pathLength; i++) {
                    if (rel[i] === "" && i === 0) {
                        current = base;
                        continue;
                    }
                    if (rel[i] === "^") {
                        if (!current.parent) throw new Error("Path '" + name + "' not valid for state '" + base.name + "'");
                        current = current.parent;
                        continue;
                    }
                    break;
                }
                rel = rel.slice(i).join(".");
                name = current.name + (current.name && rel ? "." : "") + rel;
            }
            var state = states[name];

            if (state && (isStr || (!isStr && (state === stateOrName || state.self === stateOrName)))) {
                return state;
            }
            return undefined;
        }


        function registerState(state) {
            // Wrap a new object around the state so we can store our private details easily.
            state = inherit(state, {
                self: state,
                resolve: state.resolve || {},
                toString: function () { return this.name; }
            });

            var name = state.name;
            if (!isString(name) || name.indexOf('@') >= 0) throw new Error("State must have a valid name");
            if (states[name]) throw new Error("State '" + name + "'' is already defined");

            for (var key in stateBuilder) {
                state[key] = stateBuilder[key](state);
            }
            states[name] = state;

            // Register the state in the global state list and with $urlRouter if necessary.
            if (!state['abstract'] && state.url) {
                $urlRouterProvider.when(state.url, ['$match', '$stateParams', function ($match, $stateParams) {
                    if ($state.$current.navigable != state || !equalForKeys($match, $stateParams)) {
                        $state.transitionTo(state, $match, false);
                    }
                }]);
            }
            return state;
        }


        // Implicit root state that is always active
        root = registerState({
            name: '',
            url: '^',
            views: null,
            'abstract': true
        });
        root.navigable = null;


        // .state(state)
        // .state(name, state)
        this.state = state;
        function state(name, definition) {
            /*jshint validthis: true */
            if (isObject(name)) definition = name;
            else definition.name = name;
            registerState(definition);
            return this;
        }

        // $urlRouter is injected just to ensure it gets instantiated
        this.$get = $get;
        $get.$inject = ['$rootScope', '$q', '$view', '$injector', '$resolve', '$stateParams', '$location', '$urlRouter'];
        function $get($rootScope, $q, $view, $injector, $resolve, $stateParams, $location, $urlRouter) {

            var TransitionSuperseded = $q.reject(new Error('transition superseded'));
            var TransitionPrevented = $q.reject(new Error('transition prevented'));

            root.locals = { resolve: null, globals: { $stateParams: {} } };
            $state = {
                params: {},
                current: root.self,
                $current: root,
                transition: null
            };

            $state.go = function go(to, params, options) {
                return this.transitionTo(to, params, extend({ inherit: true, relative: $state.$current }, options));
            };

            $state.transitionTo = function transitionTo(to, toParams, options) {
                if (!isDefined(options)) options = (options === true || options === false) ? { location: options } : {};
                toParams = toParams || {};
                options = extend({ location: true, inherit: false, relative: null }, options);

                var toState = findState(to, options.relative);
                if (!isDefined(toState)) throw new Error("No such state " + toState);
                if (toState['abstract']) throw new Error("Cannot transition to abstract state '" + to + "'");
                if (options.inherit) toParams = inheritParams($stateParams, toParams || {}, $state.$current, toState);
                to = toState;

                var toPath = to.path,
                    from = $state.$current, fromParams = $state.params, fromPath = from.path;

                // Starting from the root of the path, keep all levels that haven't changed
                var keep, state, locals = root.locals, toLocals = [];
                for (keep = 0, state = toPath[keep];
                     state && state === fromPath[keep] && equalForKeys(toParams, fromParams, state.ownParams) ;
                     keep++, state = toPath[keep]) {
                    locals = toLocals[keep] = state.locals;
                }

                // If we're going to the same state and all locals are kept, we've got nothing to do.
                // But clear 'transition', as we still want to cancel any other pending transitions.
                // TODO: We may not want to bump 'transition' if we're called from a location change that we've initiated ourselves,
                // because we might accidentally abort a legitimate transition initiated from code?
                if (to === from && locals === from.locals) {
                    $state.transition = null;
                    return $q.when($state.current);
                }

                // Normalize/filter parameters before we pass them to event handlers etc.
                toParams = normalize(to.params, toParams || {});

                // Broadcast start event and cancel the transition if requested
                var evt = $rootScope.$broadcast('$stateChangeStart', to.self, toParams, from.self, fromParams);
                if (evt.defaultPrevented) return TransitionPrevented;

                // Resolve locals for the remaining states, but don't update any global state just
                // yet -- if anything fails to resolve the current state needs to remain untouched.
                // We also set up an inheritance chain for the locals here. This allows the view directive
                // to quickly look up the correct definition for each view in the current state. Even
                // though we create the locals object itself outside resolveState(), it is initially
                // empty and gets filled asynchronously. We need to keep track of the promise for the
                // (fully resolved) current locals, and pass this down the chain.
                var resolved = $q.when(locals);
                for (var l = keep; l < toPath.length; l++, state = toPath[l]) {
                    locals = toLocals[l] = inherit(locals);
                    resolved = resolveState(state, toParams, state === to, resolved, locals);
                }

                // Once everything is resolved, wer are ready to perform the actual transition
                // and return a promise for the new state. We also keep track of what the
                // current promise is, so that we can detect overlapping transitions and
                // keep only the outcome of the last transition.
                var transition = $state.transition = resolved.then(function () {
                    var l, entering, exiting;

                    if ($state.transition !== transition) return TransitionSuperseded;

                    // Exit 'from' states not kept
                    for (l = fromPath.length - 1; l >= keep; l--) {
                        exiting = fromPath[l];
                        if (exiting.self.onExit) {
                            $injector.invoke(exiting.self.onExit, exiting.self, exiting.locals.globals);
                        }
                        exiting.locals = null;
                    }

                    // Enter 'to' states not kept
                    for (l = keep; l < toPath.length; l++) {
                        entering = toPath[l];
                        entering.locals = toLocals[l];
                        if (entering.self.onEnter) {
                            $injector.invoke(entering.self.onEnter, entering.self, entering.locals.globals);
                        }
                    }

                    // Update globals in $state
                    $state.$current = to;
                    $state.current = to.self;
                    $state.params = toParams;
                    copy($state.params, $stateParams);
                    $state.transition = null;

                    // Update $location
                    var toNav = to.navigable;
                    if (options.location && toNav) {
                        $location.url(toNav.url.format(toNav.locals.globals.$stateParams));
                    }

                    $rootScope.$broadcast('$stateChangeSuccess', to.self, toParams, from.self, fromParams);

                    return $state.current;
                }, function (error) {
                    if ($state.transition !== transition) return TransitionSuperseded;

                    $state.transition = null;
                    $rootScope.$broadcast('$stateChangeError', to.self, toParams, from.self, fromParams, error);

                    return $q.reject(error);
                });

                return transition;
            };

            $state.is = function is(stateOrName) {
                var state = findState(stateOrName);
                return (isDefined(state)) ? $state.$current === state : undefined;
            };

            $state.includes = function includes(stateOrName) {
                var state = findState(stateOrName);
                return (isDefined(state)) ? isDefined($state.$current.includes[state.name]) : undefined;
            };

            $state.href = function href(stateOrName, params, options) {
                options = extend({ lossy: true, inherit: false, relative: $state.$current }, options || {});
                var state = findState(stateOrName, options.relative);
                if (!isDefined(state)) return null;

                params = inheritParams($stateParams, params || {}, $state.$current, state);
                var nav = (state && options.lossy) ? state.navigable : state;
                var url = (nav && nav.url) ? nav.url.format(normalize(state.params, params || {})) : null;
                return !$locationProvider.html5Mode() && url ? "#" + url : url;
            };

            $state.get = function (stateOrName) {
                var state = findState(stateOrName);
                return (state && state.self) ? state.self : null;
            };

            function resolveState(state, params, paramsAreFiltered, inherited, dst) {
                // Make a restricted $stateParams with only the parameters that apply to this state if
                // necessary. In addition to being available to the controller and onEnter/onExit callbacks,
                // we also need $stateParams to be available for any $injector calls we make during the
                // dependency resolution process.
                var $stateParams = (paramsAreFiltered) ? params : filterByKeys(state.params, params);
                var locals = { $stateParams: $stateParams };

                // Resolve 'global' dependencies for the state, i.e. those not specific to a view.
                // We're also including $stateParams in this; that way the parameters are restricted
                // to the set that should be visible to the state, and are independent of when we update
                // the global $state and $stateParams values.
                dst.resolve = $resolve.resolve(state.resolve, locals, dst.resolve, state);
                var promises = [dst.resolve.then(function (globals) {
                    dst.globals = globals;
                })];
                if (inherited) promises.push(inherited);

                // Resolve template and dependencies for all views.
                forEach(state.views, function (view, name) {
                    var injectables = (view.resolve && view.resolve !== state.resolve ? view.resolve : {});
                    injectables.$template = [function () {
                        return $view.load(name, { view: view, locals: locals, params: $stateParams, notify: false }) || '';
                    }];

                    promises.push($resolve.resolve(injectables, locals, dst.resolve, state).then(function (result) {
                        // References to the controller (only instantiated at link time)
                        result.$$controller = view.controller;
                        // Provide access to the state itself for internal use
                        result.$$state = state;
                        dst[name] = result;
                    }));
                });

                // Wait for all the promises and then return the activation object
                return $q.all(promises).then(function (values) {
                    return dst;
                });
            }

            return $state;
        }

        function normalize(keys, values) {
            var normalized = {};

            forEach(keys, function (name) {
                var value = values[name];
                normalized[name] = (value != null) ? String(value) : null;
            });
            return normalized;
        }

        function equalForKeys(a, b, keys) {
            // If keys not provided, assume keys from object 'a'
            if (!keys) {
                keys = [];
                for (var n in a) keys.push(n); // Used instead of Object.keys() for IE8 compatibility
            }

            for (var i = 0; i < keys.length; i++) {
                var k = keys[i];
                if (a[k] != b[k]) return false; // Not '===', values aren't necessarily normalized
            }
            return true;
        }

        function filterByKeys(keys, values) {
            var filtered = {};

            forEach(keys, function (name) {
                filtered[name] = values[name];
            });
            return filtered;
        }
    }

    angular.module('ui.router.state')
      .value('$stateParams', {})
      .provider('$state', $StateProvider);


    $ViewProvider.$inject = [];
    function $ViewProvider() {

        this.$get = $get;
        $get.$inject = ['$rootScope', '$templateFactory'];
        function $get($rootScope, $templateFactory) {
            return {
                // $view.load('full.viewName', { template: ..., controller: ..., resolve: ..., async: false, params: ... })
                load: function load(name, options) {
                    var result, defaults = {
                        template: null, controller: null, view: null, locals: null, notify: true, async: true, params: {}
                    };
                    options = extend(defaults, options);

                    if (options.view) {
                        result = $templateFactory.fromConfig(options.view, options.params, options.locals);
                    }
                    if (result && options.notify) {
                        $rootScope.$broadcast('$viewContentLoading', options);
                    }
                    return result;
                }
            };
        }
    }

    angular.module('ui.router.state').provider('$view', $ViewProvider);


    $ViewDirective.$inject = ['$state', '$compile', '$controller', '$injector', '$anchorScroll'];
    function $ViewDirective($state, $compile, $controller, $injector, $anchorScroll) {
        // TODO: Change to $injector.has() when we version bump to Angular 1.1.5.
        // See: https://github.com/angular/angular.js/blob/master/CHANGELOG.md#115-triangle-squarification-2013-05-22
        var $animator; try { $animator = $injector.get('$animator'); } catch (e) { /* do nothing */ }
        var viewIsUpdating = false;

        var directive = {
            restrict: 'ECA',
            terminal: true,
            transclude: true,
            compile: function (element, attr, transclude) {
                return function (scope, element, attr) {
                    var viewScope, viewLocals,
                        name = attr[directive.name] || attr.name || '',
                        onloadExp = attr.onload || '',
                        animate = isDefined($animator) && $animator(scope, attr);

                    // Returns a set of DOM manipulation functions based on whether animation
                    // should be performed
                    var renderer = function (doAnimate) {
                        return ({
                            "true": {
                                remove: function (element) { animate.leave(element.contents(), element); },
                                restore: function (compiled, element) { animate.enter(compiled, element); },
                                populate: function (template, element) {
                                    var contents = angular.element('<div></div>').html(template).contents();
                                    animate.enter(contents, element);
                                    return contents;
                                }
                            },
                            "false": {
                                remove: function (element) { element.html(''); },
                                restore: function (compiled, element) { element.append(compiled); },
                                populate: function (template, element) {
                                    element.html(template);
                                    return element.contents();
                                }
                            }
                        })[doAnimate.toString()];
                    };

                    // Put back the compiled initial view
                    element.append(transclude(scope));

                    // Find the details of the parent view directive (if any) and use it
                    // to derive our own qualified view name, then hang our own details
                    // off the DOM so child directives can find it.
                    var parent = element.parent().inheritedData('$uiView');
                    if (name.indexOf('@') < 0) name = name + '@' + (parent ? parent.state.name : '');
                    var view = { name: name, state: null };
                    element.data('$uiView', view);

                    var eventHook = function () {
                        if (viewIsUpdating) return;
                        viewIsUpdating = true;

                        try { updateView(true); } catch (e) {
                            viewIsUpdating = false;
                            throw e;
                        }
                        viewIsUpdating = false;
                    };

                    scope.$on('$stateChangeSuccess', eventHook);
                    scope.$on('$viewContentLoading', eventHook);
                    updateView(false);

                    function updateView(doAnimate) {
                        var locals = $state.$current && $state.$current.locals[name];
                        if (locals === viewLocals) return; // nothing to do
                        var render = renderer(animate && doAnimate);

                        // Remove existing content
                        render.remove(element);

                        // Destroy previous view scope
                        if (viewScope) {
                            viewScope.$destroy();
                            viewScope = null;
                        }

                        if (!locals) {
                            viewLocals = null;
                            view.state = null;

                            // Restore the initial view
                            return render.restore(transclude(scope), element);
                        }

                        viewLocals = locals;
                        view.state = locals.$$state;

                        var link = $compile(render.populate(locals.$template, element));
                        viewScope = scope.$new();

                        if (locals.$$controller) {
                            locals.$scope = viewScope;
                            var controller = $controller(locals.$$controller, locals);
                            element.children().data('$ngControllerController', controller);
                        }
                        link(viewScope);
                        viewScope.$emit('$viewContentLoaded');
                        if (onloadExp) viewScope.$eval(onloadExp);

                        // TODO: This seems strange, shouldn't $anchorScroll listen for $viewContentLoaded if necessary?
                        // $anchorScroll might listen on event...
                        $anchorScroll();
                    }
                };
            }
        };
        return directive;
    }

    angular.module('ui.router.state').directive('uiView', $ViewDirective);

    function parseStateRef(ref) {
        var parsed = ref.match(/^([^(]+?)\s*(\((.*)\))?$/);
        if (!parsed || parsed.length !== 4) throw new Error("Invalid state ref '" + ref + "'");
        return { state: parsed[1], paramExpr: parsed[3] || null };
    }

    $StateRefDirective.$inject = ['$state'];
    function $StateRefDirective($state) {
        return {
            restrict: 'A',
            link: function (scope, element, attrs) {
                var ref = parseStateRef(attrs.uiSref);
                var params = null, url = null, base = $state.$current;
                var isForm = element[0].nodeName === "FORM";
                var attr = isForm ? "action" : "href", nav = true;

                var stateData = element.parent().inheritedData('$uiView');

                if (stateData && stateData.state && stateData.state.name) {
                    base = stateData.state;
                }

                var update = function (newVal) {
                    if (newVal) params = newVal;
                    if (!nav) return;

                    var newHref = $state.href(ref.state, params, { relative: base });

                    if (!newHref) {
                        nav = false;
                        return false;
                    }
                    element[0][attr] = newHref;
                };

                if (ref.paramExpr) {
                    scope.$watch(ref.paramExpr, function (newVal, oldVal) {
                        if (newVal !== oldVal) update(newVal);
                    }, true);
                    params = scope.$eval(ref.paramExpr);
                }
                update();

                if (isForm) return;

                element.bind("click", function (e) {
                    if ((e.which == 1) && !e.ctrlKey && !e.metaKey && !e.shiftKey) {
                        $state.go(ref.state, params, { relative: base });
                        scope.$apply();
                        e.preventDefault();
                    }
                });
            }
        };
    }

    angular.module('ui.router.state').directive('uiSref', $StateRefDirective);

    $RouteProvider.$inject = ['$stateProvider', '$urlRouterProvider'];
    function $RouteProvider($stateProvider, $urlRouterProvider) {

        var routes = [];

        onEnterRoute.$inject = ['$$state'];
        function onEnterRoute($$state) {
            /*jshint validthis: true */
            this.locals = $$state.locals.globals;
            this.params = this.locals.$stateParams;
        }

        function onExitRoute() {
            /*jshint validthis: true */
            this.locals = null;
            this.params = null;
        }

        this.when = when;
        function when(url, route) {
            /*jshint validthis: true */
            if (route.redirectTo != null) {
                // Redirect, configure directly on $urlRouterProvider
                var redirect = route.redirectTo, handler;
                if (isString(redirect)) {
                    handler = redirect; // leave $urlRouterProvider to handle
                } else if (isFunction(redirect)) {
                    // Adapt to $urlRouterProvider API
                    handler = function (params, $location) {
                        return redirect(params, $location.path(), $location.search());
                    };
                } else {
                    throw new Error("Invalid 'redirectTo' in when()");
                }
                $urlRouterProvider.when(url, handler);
            } else {
                // Regular route, configure as state
                $stateProvider.state(inherit(route, {
                    parent: null,
                    name: 'route:' + encodeURIComponent(url),
                    url: url,
                    onEnter: onEnterRoute,
                    onExit: onExitRoute
                }));
            }
            routes.push(route);
            return this;
        }

        this.$get = $get;
        $get.$inject = ['$state', '$rootScope', '$routeParams'];
        function $get($state, $rootScope, $routeParams) {

            var $route = {
                routes: routes,
                params: $routeParams,
                current: undefined
            };

            function stateAsRoute(state) {
                return (state.name !== '') ? state : undefined;
            }

            $rootScope.$on('$stateChangeStart', function (ev, to, toParams, from, fromParams) {
                $rootScope.$broadcast('$routeChangeStart', stateAsRoute(to), stateAsRoute(from));
            });

            $rootScope.$on('$stateChangeSuccess', function (ev, to, toParams, from, fromParams) {
                $route.current = stateAsRoute(to);
                $rootScope.$broadcast('$routeChangeSuccess', stateAsRoute(to), stateAsRoute(from));
                copy(toParams, $route.params);
            });

            $rootScope.$on('$stateChangeError', function (ev, to, toParams, from, fromParams, error) {
                $rootScope.$broadcast('$routeChangeError', stateAsRoute(to), stateAsRoute(from), error);
            });

            return $route;
        }
    }

    angular.module('ui.router.compat')
      .provider('$route', $RouteProvider)
      .directive('ngView', $ViewDirective);
})(window, window.angular);